diff --git a/.github/workflows/daily_jupyter_nb_test.yml b/.github/workflows/daily_jupyter_nb_test.yml
index 435b6432a3..e5c57e63ff 100644
--- a/.github/workflows/daily_jupyter_nb_test.yml
+++ b/.github/workflows/daily_jupyter_nb_test.yml
@@ -19,7 +19,7 @@ jobs:
           - name: Set up Python
             uses: actions/setup-python@v4
             with:
-              python-version: '3.9'
+              python-version: '3.10'
           - name: Set up uv
             uses: astral-sh/setup-uv@v6
             with:
diff --git a/.github/workflows/daily_modin_precommit_py311_py312.yml b/.github/workflows/daily_modin_precommit_py311_py312.yml
index fcda7f90df..bedca75ddb 100644
--- a/.github/workflows/daily_modin_precommit_py311_py312.yml
+++ b/.github/workflows/daily_modin_precommit_py311_py312.yml
@@ -23,7 +23,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.9'
+          python-version: '3.10'
       - name: Set up uv
         uses: astral-sh/setup-uv@v6
         with:
diff --git a/.github/workflows/daily_modin_precommit_py39_py310.yml b/.github/workflows/daily_modin_precommit_py39_py310.yml
index 57d18da4cf..329cd0ae2a 100644
--- a/.github/workflows/daily_modin_precommit_py39_py310.yml
+++ b/.github/workflows/daily_modin_precommit_py39_py310.yml
@@ -23,7 +23,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.9'
+          python-version: '3.10'
       - name: Set up uv
         uses: astral-sh/setup-uv@v6
         with:
diff --git a/.github/workflows/daily_precommit.yml b/.github/workflows/daily_precommit.yml
index 3c87ba3de5..9c41f04498 100644
--- a/.github/workflows/daily_precommit.yml
+++ b/.github/workflows/daily_precommit.yml
@@ -24,7 +24,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.9'
+          python-version: '3.10'
       - name: Set up uv
         uses: astral-sh/setup-uv@v6
         with:
diff --git a/.github/workflows/precommit.yml b/.github/workflows/precommit.yml
index 6beba49a74..900d3bc5f9 100644
--- a/.github/workflows/precommit.yml
+++ b/.github/workflows/precommit.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.9'
+          python-version: '3.10'
       - name: Set up uv
         uses: astral-sh/setup-uv@v6
         with:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 54f92ab876..3d2891cba7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 exclude: '^(.*egg.info.*|.*/parameters.py|docs/).*$'
 default_language_version:
-    python: python3.9
+    python: python3.10
 repos:
 -   repo: https://github.com/asottile/pyupgrade
     rev: v2.31.1
diff --git a/tox.ini b/tox.ini
index 9b4ab73404..0500245cfe 100644
--- a/tox.ini
+++ b/tox.ini
@@ -209,7 +209,7 @@ commands = flake8 {posargs}
 [testenv:fix_lint]
 allowlist_externals = bash
 description = format the code base to adhere to our styles, and complain about what we cannot do automatically
-basepython = python3.9
+basepython = python3.10
 passenv =
     PROGRAMDATA
 deps =